Umbria is a hilly region in central Italy, spread over the provinces of Perugia and Terni. The region is named for the Umbri[?] tribe, who settled in the region in the 6th century BC. Their language was Umbrian, a relative of Latin.
... absorbed by the pigment molecules.
The typical overall chemical reaction of photosynthesis is:
6H2O + 6CO2 + light → C6H12O6 (glucose) + 6O2
In simple English ...